diff options
| -rw-r--r-- | src/video_core/engines/shader_bytecode.h | 4 | ||||
| -rw-r--r-- | src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index 32800392b..a9ea550dc 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -260,6 +260,10 @@ union Instruction { } alu; union { + BitField<48, 1, u64> is_signed; + } shift; + + union { BitField<39, 5, u64> shift_amount; BitField<48, 1, u64> negate_b; BitField<49, 1, u64> negate_a; diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp index 94c6bc4b2..fde19cb6b 100644 --- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp +++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp @@ -973,6 +973,19 @@ private: } switch (opcode->GetId()) { + case OpCode::Id::SHR_C: + case OpCode::Id::SHR_R: + case OpCode::Id::SHR_IMM: { + if (!instr.shift.is_signed) { + // Logical shift right + op_a = "uint(" + op_a + ')'; + } + + // Cast to int is superfluous for arithmetic shift, it's only for a logical shift + regs.SetRegisterToInteger(instr.gpr0, true, 0, "int(" + op_a + " >> " + op_b + ')', + 1, 1); + break; + } case OpCode::Id::SHL_C: case OpCode::Id::SHL_R: case OpCode::Id::SHL_IMM: |